Baxi boiler troubleshooting

Italian trademark Baxi is characterized by impeccability of quality and reliability of its products, inter alia, boilers. It is conditioned by many factors, one of which is the presence of the troubleshooting system helping to conduct diagnostics and repairs. It is represented below in a chart form.

Baxi EcoBlue System 12 boiler troubleshooting

ProblemPossible CausesSolution
There is no domestic hot water.The boiler is not working.Check that the boiler is being supplied with power. Check fuses and the switches.
Check whether the gas valve is properly open.
If the property has a prepayment meter ensure it has sufficient credit.
The water pressure is too low (< 0.5 bar).Re-pressurise the system.
The radiators are cold.The temperature set point for the heating is too low.Increase the value with the CH temperature button or if a room thermostat is connected, increase the temperature on the room thermostat.
The heating mode is deactivated. Activate the heating mode.
The radiator valves are not open.Open the valves of all radiators connected to the system.
The boiler is not working.Check that the boiler is being supplied with power. Check fuses and switches.
Check whether the gas isolation valve is properly open. If the property has a prepayment meter ensure it has sufficient credit.
The water pressure is too low (< 0.5 bar).Re-pressurise the system.
The boiler is not working.The temperature set point for the heating is too low.Increase the value with the CH temperature button or if a room thermostat is connected, increase the temperature on the room thermostat.
No demand for heating.Ensure that timers & thermostats are calling for heat.
No power supply.Check that the boiler is being supplied with power. Check the fuses and switches.
The water pressure is too low (< 0.5 bar).Re-pressurise the system.
The boiler is indicating an error. Press the Reset button (j) R Correct the error, if possible.
The gas pressure is too low.Check whether the gas isolation valve is fully open. Open the gas isolation valve.
Condensate drain blocked.Check drain, especially any external runs in freezing temperatures.

Baxi MainEco Combi 24 boiler troubleshooting

ProblemProbable causesSolution
There is no domestic hot water.The boiler is not switched on.- Check that the boiler is switched on.
- Check the fuses and switches.
- Check that the gas valve is fully opened.
The DHW mode is deactivated.Activate the DHW mode using a suitable controller.
The water pressure is too low (< 0.8 bar).Top up the installation with water.
The energy-saving shower head is restricting the water flow.Clean the shower head: replace if necessary.
The DHW temperature setting is too low.Increase the temperature setting by using the rotary knob on the control panel or by using a suitable controller.
The radiators are cold.The heating temperature setting is too low.Increase the value of parameter P] ,j using a suitable controller or. if a room thermostat is connected increase the temperature.
The heating mode is deactivated.Activate the heating mode using a suitable controller.
The radiator valves are closed.Open the valves on all radiators connected to the heating system.
The boiler is not switched on.- Check that the boiler is switched on.
- Check the fuses and switches.
- Check that the gas valve is fully opened.
The water pressure is too low (< 0.8 bar).Top up the installation with water.
The heating water temperature setting is too lew.Increase the temperature setting by using the rotary knob on the control panel or by using a suitable controller.
The boiler is not working.The heating temperature setting is too low.Increase the value of parameter P] /| using a suitable controller or. if a room thermostat is connected increase the temperature.
No power supply.- Check that the boiler is switched on.
- Check the fuses and switches.
The water pressure is too low (< 0.8 bar).Top up the installation with water.
An error code appears on the display.- Press the Reset button for 2 seconds.
- Correct the error if possible.
The gas pressure is too low.Check that the gas valve is fully opened. Open the gas valve.
The water pressure is too low (< 0.8 bar).Not enough water in the installation.Top up the installation with water.
Water leak.Contact the fitter.
Significant variations in domestic hot water temperature.Insufficient water supply.Open the valve.
Clicking in the central heating pipes.The central heating pipe connections are too tight.Contact the fitter.
There is air in the heating pipes.It is essential that you bleed any air in the calorifier. the conduits or the taps to prevent the annoying noises likely to be produced during heating or when tapping water.
The water is circulating too quickly in the central heating system.Contact the fitter.
Significant water leak under or close to the boiler.The boiler or central heating pipes are damaged.- Close the water supply.
- Contact the fitter.

Error codes and troubleshooting